Single Degree of Freedom System-Video Simulation

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Discussion Overview

The discussion centers around video simulations of vibrations in a single degree of freedom system, with participants seeking clarification and critique of the simulation presented in a shared link. The scope includes technical aspects of harmonic motion and initial conditions relevant to the system.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant requests assistance with video simulations related to vibrations in a single degree of freedom system.
  • Another participant suggests that the original poster should clarify their specific problem regarding the simulations.
  • A third participant criticizes the initial post, indicating that it lacks sufficient detail.
  • One participant identifies the motion as harmonic and provides initial conditions for the system, noting that the neutral axis should be at the equilibrium position rather than at 4.5m.
  • This participant also mentions the application of Gruebler's equation to confirm the single degree of freedom characteristic of the system.

Areas of Agreement / Disagreement

Participants express differing opinions on the adequacy of the original post and the demonstration provided in the video. There is no consensus on the quality of the simulation or the clarity of the problem presented.

Contextual Notes

Some assumptions about the initial conditions and the definition of the neutral axis are not fully explored, and the discussion does not resolve the criticisms of the video demonstration.

jrm2002
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Can anyone help me with some video simulations on vibrations in single degree of freedom system like the one in the link below

http://video.yahoo.com/video/play?p=single+degree+of+freedom&ei=UTF-8&b=0&oid=a25e1d6eb35e01b8&rurl=www.wvutech.edu&vdone=http%3A%2F%2Fvideo.yahoo.com%2Fvideo%2Fsearch%3Fp%3Dsingle%2Bdegree%2Bof%2Bfreedom%26ei%3DUTF-8


Just copy and paste in your address box--
 
Last edited by a moderator:
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You should be a bit more specific about what exactly your problem is.
 
jrm2002 -- please provide a better post.
 
For one thing, this is harmonic motion with one degree of freedom.

Also, the initial conditions are:

x(0) ~= 4.45m

\dot {x(0)} ~= 0.6 m/s

I do not like this demonstration. They should have their neutral axis about the equilibrium position, not at around 4.5. They need to do a coordinate transformation.

You can easily see that this is a single degree of freedom by applying Gruebler's equation.
 
Last edited:

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